baber/WOPTO huggingface dataset:
Patent GB-1476202-A (GB)
Title: Three-phase x-ray apparatus
IPC: H05G1/18
Filed: 1974-07-16
Abstract: 1476202 Supply systems for X-ray apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 16 July 1974 [19 July 1973] 31428/74 Heading H2H X-ray apparatus including an X-ray tube 1 comprises a three phase autotransformer 6 arranged to supply the tube 1 by way of a conventional transformer-rectifier unit 2 with an unsmoothed unidirectional high voltage, the cathode heater of the tube and the three phase transformer being fed from alternating supplies of the same frequency, the cathode of the tube having a low thermal inertia such that a significant fluctuation occurs in the cathode temperature and therefore in the emission current at twice the supply frequency, causing a ripple component to be present in the high voltage applied to the X-ray tube 1, an electrical asymmetry being introduced into the three phase input to the unit 2 such that the rectified high voltage applied to the tube contains a further ripple component at twice the supply frequency which further ripple has amplitude and phase adjustments associated therewith so as to reduce or compensate the first mentioned ripple. The three phase asymmetry may be produced by differing adjustments on the series connected variable resistors 7a, 7b, 7c, by asymmetrically adjusting the tappings on the autotransformer 3 or by varying the phase transformation ratios of the transformer in the unit 2. Yet again resistors 4a, 4b, 4c, shortcircuitable by means of contacts 5a, 5b, 5c respectively, may be asymmetrically arranged. Contacts 3a, 3b, 3c are closed by a timing mechanism during exposure.
Patent GB-727182-A (GB)
Title: Improvements in or relating to sheet feeding mechanisms
Inventor: STYLES LEONARD WALTER
IPC: B65H1/04
Filed: 1952-12-12
Abstract: 727,182. Feeding sheets. GESTETNER, Ltd. Oct. 1, 1953 [Dec. 12, 1952], No. 31573/52. Class 100 (1). Sheet-separators.-In a stencilling or other machine the pile 13 of sheets of paper is supported at each side by a pad 39 carried by a member capable of being pressed towards the pile by a cam and follower mechanism such that a force is applied to the pad at least at the upper and lower margins to apply a uniform pressure over the height of the pad. The pad 39 is carried in a support 19 including a channelshaped frame 35 having a flange 36 through which passes a bolt 37 which is secured by a nut for adjustment in a transverse slot in the machine table 12. The pad 39, which is of rubber and has a front corrugated face, is bonded to a plate 40, Fig. 5, secured by bolts 43 to a plate 41 having a protuberance 42 (not shown) at the back forming a cam follower, and the pad is fitted within, and adapted to protrude beyond, the front face 47 of the frame 35. The plate 41 carries rearwardly-projecting pins 44 passing through guides 45 and the frame 35 and provided with springs 46 adapted to retract the pad 39 within the face 47. A cam member 48, having end finger pieces 49, is mounted to slide within the frame 35, and is of channel form with cam faces on the upper and lower limbs 52 which engage the protuberance 42 and force the pad 39 towards the pile 13. The pad 39 has a downward extension engaging within the transverse slot in the table 12 to ensure that the lower sheets in the pile are engaged. The machine shown is of the kind comprising an endless stencil holder 18 passing around upper and lower cylinders 16, 17, and driven by a handle 9. The sheets are fed from the pile 13 by a pair of rubber-faced rollers 20 on a frame 21 which is pivoted to an arm 22 secured to a carriage 23 mounted between guides 24. The carriage is slotted at 25 to receive a pin 26 on an arm 27 pivoted to the frame 10 and 28, the arm being connected by a link 29 with a crank-pin 30 on a gear 31 which is driven by the handle 9. The rollers 20 incorporate a one-way clutch which permits them to roll over the pile 13 on the outward stroke, but prevents rotation of the rollers on the inward stroke so that the topmost sheet is fed frictionally into the machine. A lever 32 can be moved to disengage the pin 26 from the slot 25 to stop the sheet feed.
Patent GB-1259998-A (GB)
Title: Method and apparatus for article detection
IPC: G01V3/04
Filed: 1969-06-24
Abstract: 1,259,998. Sheet-jamming detector. XEROX CORP. June 24, 1969 [June 28, 1968], No.31830/69. Heading G1N. [Also in Division G2] On passage of a sheet bearing a transferred graphic image through a sensor 10, having a pair of electrodes with a current flowing there between, at the inlet of a heat-fixing station employing a high intensity radiant energy flash-lamp, a bistable flip-flop energizes a timer T1 set to operate an alarm and prevent energization of the lamp after a time interval slightly greater than that required for the sheet to reach a sensor 20 at the outlet of the station. During normal operation, the timer is re-set on passage of the sheet through the sensor 20.
Patent GB-1280115-A (GB)
Title: Improvements in blindstitch sewing machines
IPC: D05B1/24
Filed: 1970-07-01
Abstract: 1280115 Eccentrics UNION SPECIAL MACHINE CO 1 July 1970 [2 July 1969] 31854/70 Heading F2K [Also in Division D1] An eccentric device comprises a first eccentric portion 22a on which is rotatably journalled a second portion 26, of lesser eccentricity, received within the sheave of a pitman 30. The first portion 22a is driven at a particular speed directly from a pulley 27 while the second portion 26 has a pin 29 engaging a slot 27a in a disc 27 secured to a second pulley 25 rotating at half the particular speed. At alternate revolutions of pulley 22 the eccentricity of portion 26 is added to or subtracted from that of portion 22a to give alternate long and short strokes to the pitman 30. The device is employed in a sewing machine (see Division D1).
Patent GB-967816-A (GB)
Title: Burner
IPC: F23C1/02
Filed: 1963-08-13
Abstract: 967,816. Burners. RILEY STOKER CORPORATION. Aug. 13, 1963 [Aug. 16, 1962], No. 31922/63. Heading F4T. A burner for the furnace of a steam generator comprises a main opening 22 through which fuel and air are admitted to the furnace, auxiliary openings 23, 24 through which air is admitted to the furnace and control means for pivoting dampers 31, 32 in the auxiliary openings to maintain the velocity of air through the main opening 22 below a predetermined value. The dampers 31, 32 are connected by a linkage 33 to an hydraulic cylinder 34 supplied with pressure oil in either direction through conduits 47, 48 from a main control 46 actuated by the drop in air pressure through the burner as determined by a conduit 44 extending into the furnace and a conduit 45 extending into a duct 43 supplying air from a fan and heater to a plenum chamber 17. An adjustable damper 40 disposed downstream of the conduit 45 controls the flow of air to the burner in accordance with the amount of fuel supplied. Further dampers 27, 28, 29 are mounted in the main and auxiliary openings 22, 23, 24 and are angularly adjusted by hand wheels 35, 38. A mixture of air and oil, pulverized coal or gas is provided by a gun 25 resting in a perforated plate in the main opening 22. The gun shown in Fig. 5 is for gas and comprises an apertured nose having an outer conical surface and an inner cup-shaped concave surface. Three burners as described are mounted in three side-by-side openings formed in the furnace by bent water-wall tubes 12. An ignition gun 39 extends into the main opening 22 of the middle burner. Specifications 765,298, 778,320 and U.S.A. Specification 2,947,289 are referred to.
Patent GB-657915-A (GB)
Title: Improvements in or relating to photographic contact-printing apparatus
IPC: G03B27/26
Filed: 1948-12-10
Abstract: 657,915. Photographic contact-printingapparatus. OZALID CO., Ltd., and EASTER, J. W. Dec. 10, 1948, No. 31963. [Class 98 (ii)] Apparatus comprising a stationary arcuate guide member such as a glass bend outside of which copy materials such as tracings and diazo-type paper are traversed by conveyer means, a reflector placed inside the bend so as to provide a lamp chamber bounded by the reflector and the bend, and a light source such as one or more mercury vapour lamps which are usually arranged lengthwise parallel to the axial dimension of the bend within the chamber, is provided with means for admitting air to the chamber through a gap between a longitudinal margin of the bend and an adjacent longitudinal margin of the reflector and for exhausting air from the chamber through a longitudinal row or rows of apertures in the reflector located remote from the air entry gap and on the opposite side of the lamps whereby air circulated through the chamber will flow wholly in a direction transverse to the axial dimension of the bend. As shown, glass bend 10 forms part of a quadrant-shaped box having top plate 11 and door plate 12, both of metal, interior lamp 15, reflector in two parts 16, 17 and conveyer belt 30 driven over rollers 31. The lower part 17 of the reflector is supported by plates 25, 26 from the door 12 leaving a gap or slot 27 between the end of the reflector and the adjacent end of the bend 10, permitting entry of air as shown by the arrows, which air is exhausted through apertures 22, 23, 24 in the upper part 16 of the reflector to suction duct 20. If desired the incoming air may be preheated by admitting it through apertures 40 in top plate 11 and causing it to pass over the suction duct 20 and over the back of the reflector. Specification 626,586 is referred to.
Patent GB-537974-A (GB)
Title: Improvements in or relating to differential gearing
IPC: G05G5/02
Filed: 1939-12-12
Abstract: 537,974. Differential gearing. EVANS, T. F. Dec. 12, 1939, No. 32064. [Class 80 (ii)] Differential gearing, particularly applicable to motor vehicles, comprises a pinion 2 on the propeller shaft 1 engaging a crown wheel 3 on a web 4 freely mounted on the divided back axle 5 on each half of which is fixed a member 6, 7 adapted to be driven from the web 4 by plunger pawl element 8, 9 floatingly mounted for endwise movement in the web. Each plunger element presents at its outer end a protruding wedge and each driven member 6, 7 presents to the web 4 a circularly pitched series of V- shaped notches 11', Fig. 2, between which are flat segmental areas 11. The plunger elements may be solid as in Fig. 7, or in two parts 8, 9, Fig. 4, urged apart by a spring 12. To prevent rotation of each plunger about its axis, it may be formed with a notch 8*, 9* adapted slidingly to engage a ridge 6*, 7* on the face of the adjacent driven member. Alternatively the plunger halves may be castellated at their inner ends to form interengaging keys, or each may have a single slot for the reception of one sliding key. The wedge-shaped ends of the plungers comprise a steeply-inclined driving face 15a, Fig. 7, and a less steeply-inclined trailing face 15b, the notches in the members 6, 7 having corresponding sides 11a, 11b. With this construction of differential it is not possible for one of the vehicle wheels to spin idly while the other remains at rest.
Patent GB-245115-A (GB)
Title: An improved automatic chuck
IPC: E04B2/16
Filed: 1925-12-18
Abstract: 245,115. Soc. Generate des Mandrins (Brevets Beck). Dec. 23, 1924, [Convention date]. Chucks.-A chuck wherein the jaws carry racks engaged by pinions actuated simultaneously by a nut comprises a body 1 having radial slots for the jaws 4, a pinion-carrier 9 having recesses 8 for the pinions 7, and a cylindrical nut 14 having one or more internal threads 17 engaging the pinions. The nut is rotated on the pinioncarrier by bevel gearing 15, 16, and the carrier is secured on the body by screws 12. The carrier, with its pinions and spindles 11, forms a removable unit, and the pinions have an ellipsoidal shape to suit the internal threads of the nut.
Patent GB-683481-A (GB)
Title: Apparatus for the analysis of the fine structure of material by x-rays
IPC: G01N23/205
Filed: 1949-12-15
Abstract: 683,481. X-ray apparatus. CHIRANA, NARODNI PODNIK, and DVORAK, A. Dec. 15, 1949, No. 32177/49. Class 98 (i). Apparatus for X-ray analysis of the fine structure of materials, wherein a specimen of the material is rotatably mounted in an exposure chamber 1 and subjected to a beam of X-rays passing through an aperture 6, a photographic film 7 is located within the chamber and around the specimen, and means are provided for screening a portion or portions of the film from X-rays reflected from the specimen, is characterised in that a holder 5 for the specimen is mounted coaxially within the exposure chamber and is rotatable from outside the chamber to adjust the specimen angularly, and a removable screen 8 is provided within the chamber for screening the film from X-rays which are reflected at a glancing angle (angle between reflected ray and surface of specimen) angles greater than 45 degrees. The specimen is first exposed to X-rays at a small angle to the primary beam with the screen in position. Rays reflected at glancing angles less than 45 degrees are recorded on the film. A similar exposure may be made with the specimen at the same angle to the beam, but on the other side. The specimen is then turned to be nearly perpendicular to the primary beam, and the screen 8 is moved clear by means of a ring 10 connected thereto by three rods 9 passing through felt washers in the top 2 of chamber 1. Rays reflected at glancing angles greater than 45 degrees are then recorded on that part of the film previously screened, the previouslyexposed part being screened by the specimen itself.
Patent GB-487862-A (GB)
Title: Improvements in or relating to brakes for cycles and the like
IPC: B62L1/14
Filed: 1936-11-25
Abstract: 487,862. Cycle brakes. WEBB & CO., Ltd., H. C., and TAYLOR, F. W. Nov. 25, 1936, Nos. 32235/36 and 18155/37. [Class 136 (i)] A cycle &c. brake comprises pivotal levers carrying brake blocks for operating on opposite sides of the wheel, a floating compensating bar tc the centre of which a pull is applied by a cable &c. to apply the brake, rode arranged between the opposite ends of the compensating bar and offset arms on the levers, and means for adjusting the effective length of the rods. The outer casing 6 of a Bowden transmission is attached to a slotted bracket 2 secured to the cycle fork, and the inner wire 8 is attached to the centre of a hollow sheet-metal compensating bar or bridge 7, the upper edge of which is bent over and slotted to receive the wire nipple. The side edges of the bar 7 are curled over to cylindrical form for the passage of rods 11, the upper ends of which are threaded to. receive nuts 12 whereby they are adjustably secured to the bar 7, the nuts being prevented from slackening by interlocking notches and projections 13. The lower ends of the rods 11 have rounded heads 14 engaging apertured lugs 15 on pivoted levers 16 carrying the brake blocks 17. The levers 16 are of channel section, and the lugs 15 are formed by slitting part of the base of the channel and bending it outwards. The pivot end of each lever 16 is apertured to receive a sleeve surrounded by a coiled pull-off spring, one end arm of which bears in the base of the channel, while its other end arm is cranked to engage a hole in an arm 33, which is clamped to the end of the sleeve by a bolt 34 and nut 38, the angular position of the arm 33 thus being adjustable to vary the stress in the spring. The bolt 34 has a square head to engage a slotted and bent-up end of an attachment clip 37 secured to the fork. The Specification also describes a hand-lever for operating the brake and pivoted to a clip, which is attached to the handle-bar and is provided with a bracket formed with a hole and slot for receiving the end of the cable casing, the nipple of the cable itself entering a hole and slot in a. quadrant adjustably secured to the lever.
Patent GB-248303-A (GB)
Title: Improvements in the construction of boots and shoes
IPC: A43B13/14
Filed: 1924-09-04
Abstract: 248,303. Shoe Inventions, Ltd., and Rice, F. E. Sept. 4, 1924. Connecting uppers to insoles and soles; methods of lasting. - In the manufacture of boots and shoes the outer sole is furnished with a deep channel J<1>, Fig. 4<b>, and is bevelled on the upper side, a wedge-shaped strip K being temporarily attached to such bevel. The outer sole is first sewn to the insole and upper through the narrower part of the strip at J<4> and then in the same channel a line of stitches J<5> unites the sole and the thicker part of the strip. The channel is then closed. This method of soling is combined with the method of lasting set forth in Specification 248,409, in which a template T<1>, Fig. 1, is nailed to the insole B on a last A, and the upper is pulled over and secured by a wire at the toe and by strips of leather F, Fig. 3, which may be afterwards removed. The template T<1> is removed and replaced by a bottom filler G.
Patent GB-544672-A (GB)
Title: Improvements in and relating to portable electric motor particularly for driving domestic apparatus, tools and the like
IPC: H02K7/14
Filed: 1939-12-15
Abstract: 544,672. Motor driving arrangements. KOOPERATIVE FORBUNDET FORENING, U.P.A. Dec. 15, 1939, No. 32301. Convention date, Dec. 22, 1938. Class 35] [Also in Group XXIII] For driving household or domestic apparatus or tools an electric motor 1 is enclosed in a rectangular casing 2 and drives at least two co-axial shafts 8, 10 at different gear ratios, for example by worm-gear 7 and toothed wheel 11. Fastening holes 21 are provided so that various pieces of apparatus can be attached to the casing and brought into driving engagement with one of the shafts, as by forked joint 14. Each apparatus has pins 22 which enter the holes 21 and are secured by a flat member 15, Fig. 2A, which is movable by finger screw 19 to engage grooves on the inner sides of pins 22. A carrying-handle 5 may be provided. The motor may drive a spice mill, egg whisk, grinding wheel, meat mincer, flexible shaft for cleaning vessels or a floor polisher. In the last case a handle and wheels are attached. The shaft 6 of the motor may extend from the casing and be adapted to carry other apparatus such as a fan. Rubber feet 28 are provided on the sides of the casing.
Patent GB-1190234-A (GB)
Title: Method of Producing Seam-Welded Pipes Using High Frequency Current
Inventor: RENKES DIETER
IPC: B23K28/02
Filed: 1967-07-13
Abstract: 1,190,234. Welding by fusion. MANNESMANN A.G. 13 July, 1967, No. 32301/67. Heading B3R. In seam welding the edges of a strip formed into a gapped pipe the edges are advanced with a V-shaped gap between them, the edges coming together at the apex of the V, which forms the weld point, high frequency alternating current is supplied inductively or conductively ahead of the weld point to heat the strip edges which are brought together at the weld point at an acute angle without exerting pressure on each other and the energy supply and rate of welding are such that the strip edges are in a molten condition at a distance ahead of the weld point. The edges are preferably molten over part of the thickness of the edges for a distance ahead of the weld point equal to 10% of the pipe diameter and are molten over the whole thickness for a distance ahead of the weld point equal to 3 or 4 times the strip thickness. The strip may be of steel and no backing strip need be employed.
Patent GB-1410135-A (GB)
Title: Corner connector for a door or window frame
IPC: E06B3/988
Filed: 1973-07-09
Abstract: 1410135 Frame joints EGO WERKE AG 9 July 1973 [10 July 1972] 32530/73 Heading E1J [Also in Division F2] A connector for mitred frame members 1, 2 comprises inserts 3, 4 connectable to respective members and having interengaging teeth 16, 17 and divergent surfaces 10, 11 and a wedge member 5 engagable with the surfaces and displacable in the direction of the mitre 19 to draw the frame members together. Each piece 3, 4 comprises a toothed member 8, 9 and a bracket 6, 7 partly overlapping the teeth and with outer divergent surfaces 10, 11. Wedge member 5 is of C-shaped cross-section with inclined opposite side surfaces engaging surfaces 10, 11. A slot 20 allows a portion of bracket 7 to be bent up to retain member 5. Angle brackets 12 each have one leg secured to a respective frame member, or alternatively toothed brackets (24, Figs 4, 5 not shown) are connected by a bolt (27) which may be wedgeshaped. The frame members are metal, wedge 5 and bolt 27 are of metal or plastics.
Patent GB-1096528-A (GB)
Title: Improvements in or relating to coin controlled mechanism
Inventor: WILCOX KENNETH
IPC: G07F17/24
Filed: 1965-07-30
Abstract: 1,096,528. Parking meters. KEYPARK Ltd. July 25, 1966 [July 30, 1965], No. 32686/65. Heading G4V. A parking installation includes a motor 14 driving impulse-producing means 15-17 for stepping a uniselector 11 in one direction, coinoperated, impulse-producing means 12 for stepping the uniselector in the opposite direction and a manual control means operable to initiate the operation of a lift for placing a vehicle in and removing a vehicle from a parkin bay. In operation, a florin is inserted in the apparatus to step the uniselector from its starting position and unlock the manual control means. The latter is re-locked after the credit is exhausted and only released again after sufficient additional money has been inserted to step the uniselector back to its starting position. The uniselector comprises four banks of contacts 23-26, one wiper arm moving over bank 23 then bank 24 and a second wiper arm over bank 25 then bank 26. The uniselector is driven by two solenoid-operated units 27, 28. The coin-box includes three cams 29-31 driven by the insertion of different coins. Each cam makes one complete revolution on the insertion of a corresponding coin to pulse the unit 27 one, two or four times and move the uniselector a corresponding number of steps in the " credit " direction. The motor 14 rotates three cams 15-17 once every hour, the cams co-operating with switches 18, 19 in series with the uniselector and unit 28. Thus the uniselector is stepped every 15, 20 or 30 minutes in the " debit " direction according to the position of the wiper arm along the banks 23, 24. In use, the wiper arms start at position 10 along banks 23, 25. On insertion of a florin, the wiper arms are stepped by unit 27 to positions 6. The circuit for relay CLR4 is completed through position 6 of bank 25, whereby holding contacts clr1 close, contacts clr2 open to isolate unit 27, and further contacts (not shown) close to energize a solenoid and release the manual control unit. The manual control unit includes a switch 43 which may now be moved to the position shown. This energizes relay EF3 closing contacts ef1 to place unit 28 in series with the uniselector, closes contacts ef3 and opens contacts ef4. When the wiper arm reaches position 11 on bank 25, relay LR1 is operated to open contacts lr2 and de-energize relay CLR4. The manual control unit is now locked in the " park " position with the contacts clr1 open and clr2 closed. To remove a vehicle from the parking bay, coins are inserted in the coin box to operate unit 27 and step the wiper arms back to positions 10. In this position relay CLR4 is energized through contacts ef3 whereby the manual control unit is unlocked.